That is down to their National Law. Later this year when Part NCO is adopted it states:
Quote:
current and suitable aeronautical charts for the route of the proposed flight and all routes along which it is reasonable to expect that the flight may be diverted;
Now what constitutes a suitable aeronautical chart?
I posed this question to the guys from the BR because I use Flighplanner and print out a "trip kit" which includes PLOG, Charts and AIPs. I asked whether I needed to buy the newest ICAO charts even though I have them in digital format on my PC / Note. They said it doesn't even have to be an original ICAO / Jeppesen chart, it can also be a photocopy - or, in my case, a print out.
According to them, what it needs to be is relevant (a road map is obviously out) showing air space boundaries, frequencies and the like and must be current....
The question is, how they could determine whether my digital charts were actual or not from a print out ;-)